> From: John Storrs <[EMAIL PROTECTED]>
> Reply-to: [EMAIL PROTECTED]
> To: [EMAIL PROTECTED]
> Subject: Re: [rtl] CPLD's - JTAG & JAM
> Date: Sun, 14 Mar 1999 10:18:59 +0000
>
> >On Fri, 12 Mar 1999, Victor wrote:
>
> On further thought, I don't know of any ISP devices you can treat like RAM.
> Don't they all have limited reprogrammability? In the case of Lattice, they
> quote 10k times. This precludes real dynamic programming. You could kill the
> device in about 10k seconds.
>
FPGA, or atleast Xilinx's Spartan series FPGA's use a RAM sturcture to store
Gate programs, (i.e. loosing power looses gate functionality). So if you have
an embedded processor available to load the FPGA on boot up (or a serial
EEPROM) the FPGA has unlimited writes.
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